JACOBUS VAN DER ELST born Rotterdam 13-10-1903, chef de bureau in a looyers office. Married in Rotterdam 01-07-1931 MARIA LOUISA JOHANNA HUBERTINA VAN HOUTEN, born in Rotterdam 11-06-1907, daughter of Wilhelmus Lambertus and Engelina Spermon.

From this marriage:
l. Jacobus Hendrikus Josephus Marla, born Rotterdam 24-03-1935;
2. Wilhelmus Lambertus Pefrus Maria, geb. Rotterdam 27-07-1938;
3. Louis Jacobus Walter Maria, geb. Rotterdam 26-03-1947;
4. Walter Louis Frederic Maria, geb Rotterdam 26-02-1950.